The Empress of Mars (Advance uncorrected proof) By Baker, Kage Books / Paperback Fiction › Sci-Fi & Fantasy Publisher: Tor Books, December 2009 Price $29.95 Free Shipping Send to a friend Collectible - Good First Edition First edition copy. Collectible - Good. Advance uncorrected proof. (science fiction) [ISBN 0765318903] $29.95 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.